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中国教育在线
9 年
2016中考化学模拟试题及答案(四)
某硫酸生产厂以黄铁矿(主要成分为FeS2)为原料生产硫酸,首先将矿石粉吹入沸腾炉里燃烧,制得SO2,其反应可表示为: FeS2+ O2= Fe2O3+ SO2。 (1)配平矿石粉在沸腾炉中燃烧的反应方程式。 (2)若以SO2为原料生产硫酸,其过程中的反应均为化合反应,写出其反应的 ...
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